Improved lubricator for loose pulleys



the following is a. full and l' tnited stat @met Gettin.

C HARLES A. KING, 0F SPRINGFIELD, MASSACHUSETTS.

Letters Patent No. 95,911, dated October 19, 1869.

-wh- IMPROVED. LUBRICATOR FOR LOOSE PULLEYS.

l The Schedule referred to in these Letters Patent and making part of the name.

To all whom it may concern.-

Be it known that I, CHARLES A. KING, of Springfield, Hampden county, State of Massachusetts, have invented a new and useful Improvement in Lubricators for Loose Pulleys; and I do hereby declare that clear description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

In the drawings- Figure I is a side and improvements Figure II is a cross-sectional view; and

.Figure III, a side view in adiierent position ofthe same.

In my improvements, the supply-chamber for the oil is constructed in the same manner and for the same purposeas that shown and described in my application for patent on improved lubricators. Dat-e of oath, July 17, 1869.

I n this case, however, the valve is made to`operate both in opening and closing, by its own weight, and is intended to apply to slow-moving pulleys,'where the centrifugal force is not sufficient to move the valve.

, As the pulley turns ov er and over, the valve drops toward and from the hub.

The valve A consists of a dat piece of metal, sliding freely between suitable guides, B, formed on the back-plate of the chamber C. It opens and shuts an opening, E, communicating between the supply-cham ber O and the lubricating-tube F.

AThe hole G is cut through the valve in a spot which will bring it opposite the hole E when it is fallen toward the hub, as shown in Fig. I, and when the valve has fallen away from the hub, as shown in Fig. II, there is no communication between them.

A screw, H, regulates the fall in one case, and a screw, I, in the other, both screws being adjusted from the outside of the reservoir G.

By the use of the screw H, the valve may be regulated so as to admit more or less oil through the passage into the tube F, as the hole G may be made to partial sectional view of my fall just opposite the one, E, or a little past it, and so admit a full or partial quantityof oil, as may be desired.

In operation, the reservoir is filled about half` full of oil, and the valve is shut oi while performing the lower'half of its journey, which prevents any considerable amount of oil from flowing through into the tube.

The centrifugal force assists the valve in falling from the hub, so'that is closedbefore it enters the oil.

It will be seen that the hole G is formed with a larger opening next to the back ofthe chamber than at the front. This is to give it greater capacity for holdin oil. 'Y

s the valve passes round underneath the oil, this hole G iills with it, and as soon as the valve drops toward the hub, this small portion of' oil- Hows through into the tube, and is cut oit' by the next motion of the valve. Thus, it is seen that each revolution of the pulley supplies the tube with a few drops of oil, while the valve is always kept closed when under the l'evel of the oil. y

'This device forms a simple and effective automatic feed for lubrioators to loose pulleys, and is especially adapted to slow-moving pulleys.

Now, having described my invention,

What I claim as new, and desire to secure by Letters Patent, is

1. A valve for pulley-lubricators, constructed and arranged as' described, so as to open and close the passage communicating between the reservoir and the pulley-bearing, by its own weight, as the pulley revolves. v

2. The combination of the slide-valve A, with adj usting-screws H and I, and hole G, and the reservoir 0, with hole E, constructed and arranged as and for the purpose shown.

C. A. KING. Witnesses:

EDWARD H. HYDE, J. B. GARDINER. 

